Caboose

Hi, noob here and new member at the same time. My take on it. Space must be made of energy)) Energy is somewhat can be defined as ability to produce work against resistant medium (environment). what seems to be a present 'structure' or 'made of' might have been expansion epoch where 'string stage' gave birth to gluons and what not, and no longer present. There I think should be elastic resistance medium that energy is penetrating at its highest concentration points. ))